diff --git a/build/libraries/os/common/os_init_firm.c b/build/libraries/os/common/os_init_firm.c
index 97bba3b1..7359313e 100644
--- a/build/libraries/os/common/os_init_firm.c
+++ b/build/libraries/os/common/os_init_firm.c
@@ -50,7 +50,7 @@ void OS_InitFIRM(void)
     OS_InitArena();
 
     //---- Init Spinlock
-//    OS_InitLock();
+    OS_InitLock();
 
     //---- Init Arena (extended main)
     OS_InitArenaEx();
@@ -112,7 +112,7 @@ void OS_InitFIRM(void)
     OS_InitArena();
 
     //---- Init Spinlock
-//    OS_InitLock();
+    OS_InitLock();
 
     //---- Init IRQ Table
     OS_InitIrqTable();